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Georg Pollak vs Georgi Tringov
Buesum (1968), Buesum FRG, rd 6, May-??
Benoni Defense: Taimanov Variation (A67)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Sep-12-18  whiteshark: <28.Qg2> was clearly a mistake, but there's the agony of choices:


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Black to move

1) -2.21 (35 ply) 28...c3 29.Bb1 b3 30.Nd4 Qa4 31.Rxe8+ Rxe8 32.Bh4 Nd7 33.Nxb3 Qxb3 34.Bc2 Qa2 35.Re1 Rxe1+ 36.Bxe1 Bc1 37.Bxc3 Be3+ 38.Kh1 Qa3 39.Be1 Bxf4 40.Be4 Nc5 41.Bf3 Nd3 42.Bg3 Qa1+ 43.Kh2 Qe5 44.Bxf4 Nxf4 45.Qg3 f6 46.h4 Kf7 47.Bg2 h6 48.Kh1 f5 49.gxf5 gxf5 50.Bf3 Kf6 51.h5 Kf7

2) -2.19 (34 ply) 28...b3 29.Nd4 c3 30.Bb1 Qa4 31.Rxe8+ Rxe8 32.Bh4 Nd7 33.Nxb3 Qxb3 34.Bc2 Qa2 35.Re1 Rxe1+ 36.Bxe1 Bc1 37.Bxc3 Be3+ 38.Kh1 Qa3 39.Be1 Bxf4 40.Be4 Nc5 41.Bf3 Nd3 42.Bg3 Bxg3 43.Qxg3 Qc1+ 44.Kh2 Qd2+ 45.Kh1 Nf4 46.Bg2 Kg7 47.Qf3 Kf6 48.Kh2 Qxg2+ 49.Qxg2 Nxg2 50.Kxg2 Ke5 51.Kg3 Kxd5 52.Kh4 Ke6 53.Kg3 d5 54.Kf3

3) -1.04 (34 ply) 28...Nxe4 29.Rxe4 Rxe4 30.Qxe4 Qxh3 31.Qg2 Qxg2+ 32.Kxg2 b3 33.Bd4 Bxd4 34.Nxd4 h5 35.gxh5 gxh5 36.Kf2 b2 37.Rb1 c3 38.Ne2 Rc8 39.Nxc3 Rxc3 40.Rxb2 Rc5 41.Ke3 Rxd5 42.Ke4 Ra5 43.Rd2 d5+ 44.Ke5 Kg7 45.Kf5 h4 46.Kg4 Kf6 47.Kxh4 Kf5 48.Rd4 f6 49.Kg3 Ra3+ 50.Kf2

15.0 minute analysis by Stockfish 9 v010218

= = =

My algo suggests another move (as best one), though. ;)

Sep-13-18  whiteshark: Stronger as mentioned was <28...Bc3!>


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White to move

1) -2.66 (32 ply) 29.Re2 Nxe4 30.Rxe4 b3 31.Rxe8+ Rxe8 32.Qf3 b2 33.Rf1 Qb3 34.Nd4 b1=Q 35.Nxb3 Qxb3 36.Kg2 Qb2 37.Kh1 Re2 38.h4 Rd2 39.Be3 Rd3 40.f5 Be5 41.Rf2 Qb1+ 42.Kg2 Rd1 43.Rf1 Rxf1 44.Qxf1 Qe4+ 45.Qf3 gxf5 46.Qxe4 fxe4 47.g5

2) -2.74 (32 ply) 29.Re3 Nxe4 30.Rxe4 transposition to 1) [note the different eval - strange]

3) -4.38 (32 ply) 29.Bc2 Rxe1+ 30.Bxe1 Bxe1 31.Rxe1 Qc3 32.Qf2 Qxh3 33.Bd1 Ra3 34.Qh2 Rg3+ 35.Kh1 b3 36.Qxh3 Rxh3+ 37.Kg2 Rc3 38.Bxb3 cxb3 39.g5 Nh5 40.f5 Nf4+ 41.Kg1 gxf5 42.Re8+ Kg7 43.Rb8 Nh3+ 44.Kg2 Nxg5 45.Nd4 Rd3 46.Nxb3 Kf6 47.Nc1 Rd2+ 48.Kg3 Ke5 49.Re8+ Kxd5 50.Ne2 Ne4+ 51.Kf3 h5 52.Nf4+ Kd4 53.Ne2+ Kd3 54.Nc1+ Kc4 55.Ke3

15.0 minute analysis by Stockfish 9 v010218

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